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authorBob Moore <robert.moore@intel.com>2014-07-30 12:22:05 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-31 00:50:24 +0200
commit67a3d6203cdc389cc602af80d0beba819b2f2631 (patch)
tree371e7ae4a62bce574b56a2a6a73e39b1d1ca7976
parent54ea4247d389059674aaacad7af224459b135fb9 (diff)
ACPICA: ACPI 5.1: Update for PCCT table changes.
One new subtable. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--include/acpi/actbl3.h25
1 files changed, 24 insertions, 1 deletions
diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index 41ad9648ca52..787bcc814463 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -448,7 +448,8 @@ struct acpi_table_pcct {
enum acpi_pcct_type {
ACPI_PCCT_TYPE_GENERIC_SUBSPACE = 0,
- ACPI_PCCT_TYPE_RESERVED = 1 /* 1 and greater are reserved */
+ ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE = 1,
+ ACPI_PCCT_TYPE_RESERVED = 2 /* 2 and greater are reserved */
};
/*
@@ -470,6 +471,28 @@ struct acpi_pcct_subspace {
u16 min_turnaround_time;
};
+/* 1: HW-reduced Communications Subspace (ACPI 5.1) */
+
+struct acpi_pcct_hw_reduced {
+ struct acpi_subtable_header header;
+ u32 doorbell_interrupt;
+ u8 flags;
+ u8 reserved;
+ u64 base_address;
+ u64 length;
+ struct acpi_generic_address doorbell_register;
+ u64 preserve_mask;
+ u64 write_mask;
+ u32 latency;
+ u32 max_access_rate;
+ u16 min_turnaround_time;
+};
+
+/* Values for doorbell flags above */
+
+#define ACPI_PCCT_INTERRUPT_POLARITY (1)
+#define ACPI_PCCT_INTERRUPT_MODE (1<<1)
+
/*
* PCC memory structures (not part of the ACPI table)
*/